CN107063647A - The isolation of filter plate and the detection means and method of input light loss objective - Google Patents
The isolation of filter plate and the detection means and method of input light loss objective Download PDFInfo
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- CN107063647A CN107063647A CN201710312119.6A CN201710312119A CN107063647A CN 107063647 A CN107063647 A CN 107063647A CN 201710312119 A CN201710312119 A CN 201710312119A CN 107063647 A CN107063647 A CN 107063647A
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- Prior art keywords
- filter plate
- current value
- collimater
- isolation
- light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
The present invention relates to optical communication field, the detection means and method of a kind of isolation of filter plate and input light loss objective are provided, the device includes base, on base and the riser vertical with base, Z axis displacement platform on riser, photodetector on Z axis displacement platform, filter plate placement platform on riser and below Z axis displacement platform, XY axial displacement platforms on base, it is used for the support column for fixing collimater on XY axial displacement platforms, the light source being connected with collimater by optical fiber, the current measurement module electrically connected with photodetector, it is arranged on the collimater below filter plate placement platform, controller.Technical scheme proposed by the present invention realizes the isolation of filter plate and the test of input light loss objective, and compared with prior art, the testing time substantially reduces, input cost reduction, it is easy to realize that mass is tested.
Description
Technical field
The invention belongs to optical communication field, the detection of more particularly to a kind of isolation of filter plate and input light loss objective
Device and method.
Background technology
With the development of optical communication technique, the application of multiband technology is more and more universal, and multiband technology is needed limited
Wave-length coverage in mark off more wave bands be used for transmit information, therefore filtering of the multiband technology to being configured in all BOSA
Piece performance requires higher, because the species of filter plate in cavity is also more and more, therefore the isolation between wave band and input light loss
Consume index also more and more important, because the higher input light loss of isolation is smaller, so that the index to BOSA is better, therefore filtering
The isolation of piece and the conventional test index that input light loss is BOSA.
At this stage industry wave band sweep test is generally carried out using spectroanalysis instrument come test the isolation of filter plate with it is defeated
Enter light loss, test philosophy is：Testboard lower end collimater is connected with light source, and upper end collimater passes through coupler and light power meter
With the connection of light source analyzer, trial product to be measured is placed on objective table, and light source is vertically injected through to be tested by lower end collimater
Product enters upper end collimater, and light path is evenly distributed to light power meter and spectroanalysis instrument by upper end collimater by coupler,
Light power meter is responsible for monitoring light energy, and spectroanalysis instrument receives optical signal analysis spectroscopic data, and transfers data to computer and enter
Row analysis judges.
Above-mentioned method of testing has the following disadvantages：First, isolation and the input light loss objective of filter plate can only be carried out
Big built-in testing, it is impossible to which each small pieces is arrived in test, it is impossible to ensure the overall quality of filter plate.Second, it is longer per the built-in testing time,
Inefficiency, the cost of labor of every is higher.3rd, required equipment cost is very high, it is not easy to realize that mass is tested.
The content of the invention
It is an object of the invention to provide the detection means and method of a kind of isolation of filter plate and input light loss objective,
To solve one of problem above.
The present invention is achieved by the following technical solutions.
Present invention firstly relates to the detection means of a kind of isolation of filter plate and input light loss objective, including base,
On base and the riser vertical with base, the Z axis displacement platform on riser, on Z axis displacement platform
Photodetector, the filter plate placement platform on riser and below the Z axis displacement platform, on base
XY axial displacements platform, on XY axial displacement platforms it is used to fix the support column of collimater, is connected by optical fiber with collimater
Light source, electrically connected with photodetector current measurement module, be arranged on below filter plate placement platform collimater, control
Device, the controller is connected with current measurement module and light source respectively.
As a preferred embodiment, the control implement body is configured to：Source emissioning light signal is controlled, it is described
The wavelength of optical signal is identical or identical with transmitted light wave length with filter plate reflecting light length；When the wavelength of source emissioning light signal
With filter plate reflecting light appearance simultaneously, the current value that measures of current measurement module is received and according to the current value and not
The maximum current value that measurement is obtained when placing filter plate calculates the isolation angle value of filter plate；When source emissioning light signal wavelength with
Filter plate transmitted light wave appearance simultaneously, receives the current value that measures of current measurement module and not put according to the current value and
The maximum current value that measurement is obtained when putting filter plate calculates the input light loss value of filter plate.
As another preferred embodiment, the collimater is mutually perpendicular to the filter plate placement platform.
As another preferred embodiment, the photodetector is large photosensistive surface detector.
As another preferred embodiment, the light source is LASER Light Source.
The invention further relates to the detection method of a kind of isolation of filter plate and input light loss objective, including filter plate
Isolation detects the detection with input light loss objective,
The isolation detection of the filter plate includes：
Controller controls source emissioning light signal, and the wavelength of the optical signal is identical with filter plate reflection wavelength；
Optical signal is transferred to collimater by optical fiber, and the converged light received is converted into directional light and directly launched by collimater
To photodetector；
The output current of photodetector is measured by current measurement module and is sent obtained current value is measured to control
Device, adjusts XY axial displacement platforms, makes collimater movement until the current value maximum that current measurement module is measured；
Filter plate to be measured is placed on filter plate placement platform, the converged light received is converted into putting down by collimater
Row light is launched to filter plate；
Optical signal, which is passed through, to be received by a photoelectric detector after filter plate and measures the defeated of photodetector by current measurement module
The current value for going out electric current and obtaining measurement is sent to controller；
Controller receives the current value that measures of current measurement module and is not placing according to the current value and filter plate
When the obtained maximum current value of measurement calculate the isolation angle value of filter plate,
The detection of the input light loss objective includes：
Controller controls source emissioning light signal, and the wavelength of the optical signal is identical with filter plate transmitted light wave length；
Optical signal is transferred to collimater by optical fiber, and the converged light received is converted into directional light and directly launched by collimater
To photodetector；
The output current of photodetector is measured by current measurement module and is sent obtained current value is measured to control
Device, adjusts XY axial displacement platforms, makes collimater movement until the current value maximum that current measurement module is measured；
Filter plate to be measured is placed on filter plate placement platform, the converged light received is converted into putting down by collimater
Row light is launched to filter plate；
Optical signal, which is passed through, to be received by a photoelectric detector after filter plate and measures the defeated of photodetector by current measurement module
The current value for going out electric current and obtaining measurement is sent to controller；
Controller receives the current value that measures of current measurement module and is not placing according to the current value and filter plate
When the obtained maximum current value of measurement calculate the light loss value of input light.
As a preferred embodiment, the photodetector is large photosensistive surface detector.
As another preferred embodiment, the optical signal of the light source transmitting is laser.
Technical scheme proposed by the present invention has the advantages that：
By the present invention, the isolation of filter plate and the test of input light loss objective are realized, compared with prior art,
Testing time substantially reduces, input cost reduction, it is easy to realize that mass is tested.
Brief description of the drawings
The isolation for the filter plate that Fig. 1 provides for a kind of embodiment of the present invention and the detection means of input light loss objective
Principle schematic diagram.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below by the embodiment of the present invention
Carry out clear, complete description.
The isolation for the filter plate 12 that Fig. 1 provides for a kind of embodiment of the present invention is filled with the detection of input light loss objective
The principle schematic diagram put.As shown in figure 1, the detection means includes base 1, on base 1 and vertical with base 1
Riser 2, the Z axis displacement platform 3 on riser 2, the photodetector 4 on Z axis displacement platform 3, installed in perpendicular
On plate 2 and the filter plate placement platform 5 positioned at the lower section of Z axis displacement platform 3, the XY axial displacements platform 6 on base 1, peace
It is used for the support column 7 for fixing collimater 8, the light source 9 and light that are connected with collimater 8 by optical fiber on XY axial displacements platform 6
Current measurement module 10, the collimater 8 for being arranged on the lower section of filter plate placement platform 5, the controller 11 of the electrical connection of electric explorer 4.
Controller 11 is connected with current measurement module 10 and light source 9 respectively, output current of the current measurement module 10 to photodetector 4
Measure and send the current value measured to controller 11, controller 11 receives the electric current that current measurement module 10 is sent
Value, in addition, the wavelength for the optical signal that controller 11 is also sent to light source 9 is controlled, in addition, controller 11 is additionally operable to calculate filter
The isolation angle value of wave plate 12 and input light loss objective value：When light source 9 launches the wavelength and the reflecting light of filter plate 12 of optical signal
Simultaneously, controller 11 receives the current value that measures of current measurement module 10 and is not placing according to the current value and filter appearance
The maximum current value that measurement is obtained during wave plate 12 calculates the isolation angle value of filter plate 12；When light source 9 launch optical signal wavelength with
Simultaneously, controller 11 receives the current value that measures of current measurement module 10 and according to the electric current to the transmitted light wave appearance of filter plate 12
Value and the maximum current value that measurement is obtained when not placing filter plate 12 calculate the input light loss value of filter plate 12.Collimater
8 are used to avoid influence of the focal length to test result, and specifically, collimater 8 and filter plate placement platform 5 are perpendicular, filter plate 12
Lie on filter plate placement platform 5, it is necessary to illustrate, filter plate placement platform 5 itself should not influence the transmission to optical signal.
Specifically, in the present embodiment, light source 9 uses LASER Light Source, and photodetector 4 is large photosensistive surface detector, electric current
Measurement module 10 is 2400 numeric type source tables.
The detection method of the isolation and input light loss objective that are filtered piece using above-described embodiment may be referred to down
State specific method embodiment.
Another embodiment of the present invention is the isolation of filter plate and the detection method of input light loss objective, and it includes
The isolation detection and the detection of input light loss objective of filter plate are, it is necessary to illustrate, the isolation detection of filter plate and input light
The detection of loss objective is two independent measuring process, and the two does not influence mutually, therefore, the isolation inspection of single filter plate
Survey method or the detection method of input light loss objective fall within protection scope of the present invention.
First, the isolation detection of filter plate
The isolation detection of filter plate includes：
(1) controller control light source transmitting laser, the wherein wavelength of laser is identical with filter plate reflection wavelength.
(2) laser of light source transmitting is transferred to collimater by optical fiber, and the converged light received is converted into putting down by collimater
Row light is directly launched to photodetector.Now, filter plate to be measured should not be placed on filter plate placement platform, makes photoelectricity
Detector directly receives the laser of collimater transmission.
(3) output current of photodetector is measured by current measurement module and sent obtained current value is measured to control
Device processed, adjusts XY axial displacement platforms, makes collimater movement maximum, it is necessary to say up to the current value that current measurement module is measured
It is bright, in order to measure the current value for obtaining maximum, XY axial displacements platform can be made to be moved according to certain step value.Will measurement
Obtained maximum current value is designated as Imax。
(4) filter plate to be measured is placed on filter plate placement platform, collimater changes the converged light received
Launch into directional light to filter plate.
(5) it is received by a photoelectric detector after laser light filter plate and the defeated of photodetector is measured by current measurement module
The current value for going out electric current and obtaining measurement is sent to controller.
(6) controller receives the current value I that measures of current measurement module and is not placing according to current value I and filter
The maximum current value I that measurement is obtained during wave platemaxThe isolation angle value A of filter plate is calculated, specifically calculation formula is：A=10*log
(Imax/I)。
2nd, the detection of input light loss objective
The detection of input light loss objective includes：
(1) controller control light source transmitting laser, the wherein wavelength of laser is identical with filter plate transmitted light wave length.
(2) laser of light source transmitting is transferred to collimater by optical fiber, and the converged light received is converted into putting down by collimater
Row light is directly launched to photodetector.Now, filter plate to be measured should not be placed on filter plate placement platform, makes photoelectricity
Detector directly receives the laser of collimater transmission.
(3) output current of photodetector is measured by current measurement module and sent obtained current value is measured to control
Device processed, adjusts XY axial displacement platforms, makes collimater movement until the current value maximum that current measurement module is measured.To now it survey
The maximum current value measured is designated as Imax2。
(4) filter plate to be measured is placed on filter plate placement platform, collimater changes the converged light received
Launch into directional light to filter plate.
(5) it is received by a photoelectric detector after laser light filter plate and the defeated of photodetector is measured by current measurement module
The current value for going out electric current and obtaining measurement is sent to controller.
(6) controller receives the current value I that current measurement module is measured2And according to current value I2And do not placing
The maximum current value I that measurement is obtained during filter platemax2The input light loss value B of filter plate is calculated, specifically calculation formula is：B
=10*log (Imax2/I2)。
As can be seen from the above embodiments, by the apparatus and method in the embodiment of the present invention, realize filter plate every
From the test of degree and input light loss objective, compared with prior art, the testing time substantially reduces, input cost reduction, holds very much
Easily realize that mass is tested.
It is to be appreciated that the embodiment of foregoing description is a part of embodiment of the present invention, rather than whole embodiments, also not
It is limitation of the present invention.Based on embodiments of the invention, those of ordinary skill in the art are not paying creative work premise
Lower obtained every other embodiment, belongs to protection scope of the present invention.
Claims (8)
1. the detection means of a kind of isolation of filter plate and input light loss objective, it is characterised in that including base (1), install
On base (1) and the riser (2) vertical with base (1), the Z axis displacement platform (3) on riser (2), installed in Z axis
Photodetector (4) on displacement platform (3), the filter plate on riser (2) and below Z axis displacement platform (3)
Placement platform (5), the XY axial displacements platform (6) on base (1), on XY axial displacements platform (6) be used for fix
The support column (7) of collimater (8), the light source (9) being connected with collimater (8), the current measurement electrically connected with photodetector (4)
Module (10), the collimater (8) being arranged on below filter plate placement platform (5), controller (11), the controller (11) is respectively
It is connected with current measurement module (10) and light source (9).
2. the detection means of the isolation of filter plate according to claim 1 and input light loss objective, it is characterised in that
The controller (11) is specifically configured to：Light source (9) transmitting optical signal is controlled, wavelength and the filter plate of the optical signal reflect
Optical wavelength is identical or identical with transmitted light wave length；When light source (9) launches the wavelength and filter plate reflecting light appearance of optical signal
Meanwhile, receive current measurement module (10) current value that measures and measured according to the current value and when not placing filter plate
Obtained maximum current value calculates the isolation angle value of filter plate；When light source (9) launches the wavelength and filter plate transmitted light of optical signal
When wavelength is identical, receives current measurement module (10) current value that measures and do not placing according to the current value and filter plate
When the obtained maximum current value of measurement calculate the input light loss value of filter plate.
3. the detection means of the isolation of filter plate according to claim 1 and input light loss objective, it is characterised in that
The collimater (8) is mutually perpendicular to the filter plate placement platform (5).
4. the detection means of the isolation of filter plate according to claim 1 and input light loss objective, it is characterised in that
The photodetector (4) is large photosensistive surface detector.
5. the detection means of the isolation of filter plate according to claim 1 and input light loss objective, it is characterised in that
The light source (9) is LASER Light Source.
6. a kind of detection method of isolation of filter plate and input light loss objective, it is characterised in that the isolation including filter plate
Degree detection and the detection of input light loss objective,
The isolation detection of the filter plate includes：
Controller controls source emissioning light signal, and the wavelength of the optical signal is identical with filter plate reflection wavelength；
Optical signal is transferred to collimater by optical fiber, and the converged light received is converted into directional light directly transmitting to light by collimater
Electric explorer；
The output current of photodetector is measured by current measurement module and obtained current value will be measured and is sent to controller, is adjusted
XY axial displacement platforms are saved, make collimater movement until the current value maximum that current measurement module is measured；
Filter plate to be measured is placed on filter plate placement platform, the converged light received is converted into directional light by collimater
Launch to filter plate；
Optical signal passes through the output electricity for being received by a photoelectric detector after filter plate and photodetector being measured by current measurement module
The current value for flowing and obtaining measurement is sent to controller；
Controller receives the current value that measures of current measurement module and surveyed according to the current value and when not placing filter plate
The maximum current value measured calculates the isolation angle value of filter plate,
The detection of the input light loss objective includes：
Controller controls source emissioning light signal, and the wavelength of the optical signal is identical with filter plate transmitted light wave length；
Optical signal is transferred to collimater by optical fiber, and the converged light received is converted into directional light directly transmitting to light by collimater
Electric explorer；
The output current of photodetector is measured by current measurement module and obtained current value will be measured and is sent to controller, is adjusted
XY axial displacement platforms are saved, make collimater movement until the current value maximum that current measurement module is measured；
Filter plate to be measured is placed on filter plate placement platform, the converged light received is converted into directional light by collimater
Launch to filter plate；
Optical signal passes through the output electricity for being received by a photoelectric detector after filter plate and photodetector being measured by current measurement module
The current value for flowing and obtaining measurement is sent to controller；
Controller receives the current value that measures of current measurement module and surveyed according to the current value and when not placing filter plate
The maximum current value measured calculates the light loss value of input light.
7. the detection method of the isolation of filter plate according to claim 6 and input light loss objective, it is characterised in that
The photodetector is large photosensistive surface detector.
8. the detection method of the isolation of filter plate according to claim 6 and input light loss objective, it is characterised in that
The optical signal of the light source transmitting is laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710312119.6A CN107063647A (en) | 2017-05-05 | 2017-05-05 | The isolation of filter plate and the detection means and method of input light loss objective |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710312119.6A CN107063647A (en) | 2017-05-05 | 2017-05-05 | The isolation of filter plate and the detection means and method of input light loss objective |
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2017
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| CN102072810A (en) * | 2009-11-20 | 2011-05-25 | 沈阳仪表科学研究院 | Integral measuring method for signal-to-noise ratio of optical filter |
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| CN203849001U (en) * | 2014-05-28 | 2014-09-24 | 奥普镀膜技术（广州）有限公司 | Optical filter four-point test apparatus |
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Address after: 621000 Sichuan city of Mianyang province high tech Zone Puming South East No. 95 Applicant after: Sichuan Jiuzhou Optoelectronics Technology Co., Ltd. Address before: 621000 Mianyang city of Sichuan Province Branch Chong Park Road No. 259 Jiuzhou Jiuzhou science and Technology Industrial Park Applicant before: Sichuan Jiuzhou Optoelectronics Technology Co., Ltd. |
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Application publication date: 20170818 |
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